Those who said: when one sleeps, he should perform ablution

Sayyiduna Abu Hurayrah (may Allah be pleased with him) said: Whoever falls fully into sleep (istihqaq al-nawm), his ablution is broken. Al-Jurayri says: We asked about "falling fully into sleep", and we were told that it means laying one's side on the ground.

Tawus was asked about a man who sleeps while sitting. He said: It (wakefulness) is only a tie (that holds one's state of purity); when you lose it, (meaning) he should perform ablution.

Ikrimah says: It (wakefulness) is only a tie (that holds one's state of purity); so when he sleeps, he should perform ablution.

Al-Hasan used to say: Whoever is overtaken by sleep should perform ablution.

In the view of al-Hasan, sleeping while sitting breaks ablution.

Al-Hasan used to say: Whoever is entered by sleep, his ablution is broken.

Al-Hasan and Sa'id bin al-Musayyib say: Whoever has sleep penetrate his heart, whether he is sitting or standing, his ablution is broken.

Sayyiduna Umar (may Allah be pleased with him) says: Whoever lays his side down should perform ablution.

Urwah says: When sleep overcomes a person while he is sleeping sitting, his ablution is broken.